Compound doffer for mangles



(No Model.)

T. S. WILES 8v M. E. WENDELL.

COMPOUND 'DOFPBR FOR MANGLES.

No. 487,592. Patented m0. 6, 1892.

UNITED STATES PATENT OFFICE.

THOMAS S. \VILES, OF ALBANY, AND MENZO E. WENDELL, OF TROY, NEW YORK.

COMPOUND DOFFER FOR MANGLES.

SPECIFICATION forming part of Letters Patent No. 487,592, dated December 6, 1892. Application filed May 9, 1892. Serial No. 432,314. (No model.)

To aZZ whom it may concern.-

Be it known that we, THOMAS S. WILES, residing at Albany, in the county of Albany, and MENzo E. WENDELL, residing at Troy, in the county of Rensselaer, State of New York, citizens of the United States, have invented certain new and useful Improvementsin Oompound Doflfers for Mangles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has relation to mangles and other ironing-machines in which the goods pass from one portion of the machine to another while they are being ironed, the principal object of the invention bemg the provision of means for insuring the passage or transferrence of the leading edge of the goods from one member of the machine to another.

In that class of ironing-machines in which the goods are carried by a clothed drum or cylinder and between said drum or cylinder and heated ironing devices there is a marked tendency for the goods to adhere to the clothing of the drum to such an extent that an ordinary dofier-blade will at times fail to separate the goods from the drum along their leading edge, whereby the operation of the mangle is defective in that the goods are not transferred to subsequent ironing mechanism or are rumpled and become clogged between the doffer-blade and the drum. This difficulty arises with greater frequency Where the goods being ironed have an unfinished, a frayed, or fringed edge, as in napkins, towels, and the like. To overcome this difficulty, rotary doffers have been substituted for bladedotfers; but by reason of the character of rotary doffers heretofore employed and their rotary motion the goods, although separated from the drum, frequently become so adherently connected with the rotary doffer as to be wound thereon,and for this reason the application of a rotary dofiter alone does not satisfactorily accomplish the transferrence of the goods from the drum to subsequent lIOIling mechanism.

Our invention consists in the provision of a combined rotary and stationary transferring mechanism, whereby the former may llft and positively separate from the drum the leading edge of the goods or articles being ironed, and whereby said leading edge shall be by the latter positively separated from the rotary doffer and directed to subsequent ironing mechanism. The provision of a compound doffer of the nature indicated has resulted in actual practice in a perfectly-satisfactory separation of the goods from the drum and a direction of the same into subsequent ironing mechanisms.

We have illustrated in the accompanying drawings one manner of embodying the invention in a mangle; but we do not intend thereby to restrict the invention to the exact manner of application and detail of construction shown and described, as the same may be applied in a variety of ways to mangles and ironing-machines of entirely-different construction and arrangement, and various modifications of the invention will readily suggest themselves to persons conversant with the structure and mode of operation of mangles and analogous machines.

Referring to the drawings, Figure 1 is a side elevation, with parts in section, of the principal elements of a mangle so far as the same are necessary as an illustration of one form of applying our invention to the same. Fig. 2 is an end elevation of the main portion of the devices necessary to an understanding of the said form of an application of our invention to a machine of the character specified. Fig. 3 is a cross-section of the rotary doffer.

Like letters refer to like parts in all the figures.

A represents a suitable framework for the support and operation of the principal devices of a mangle, among which maybe mentioned the drum B, which is represented by the dotted lines in Fig. l. The drum may be of any usual construction, including or not, as desired, the textile clothing usually applied thereto.

0 represents the clothed roll, which co-operates with a steam-chest 0', these two parts constituting what is known as a Decoudin mangle, and in this instance constitute the supplementary or final ironing mechanisms of the machine.

Any suitable system of gearing of usual and well-known arrangement is employed to rotate the drum and the clothed roll 0 in the direction indicated by the arrows thereon.

The power-shaft D, provided with the fast and loose pulleys D D and with a pinion D, is provided, whereby motion may be conveyed to the movable parts of the machine proper. As these details are present in all machines and are well known, it is not deemed necessary to further describe the same. Furthermore, they form no part of our invention.

In the adaptation of our invention to amangle or analogous machine and for the purpose of transferring goods from the primary to a succeeding mechanism we have in this instance represented brackets E, mounted loosely on the power-shaft D' and provided with bearings E for the journal of the rotary doffer F. It is understood, of course, that there are two bracketsone at each end of the dotfer-and that each of said brackets is loosely mounted on the shaft D at opposite sides of and in this instance within the frame of the machine.

The rotary doifer F may be constructed in any desired manner, its periphery beingpreferably of a brush-like form, as represented most clearly at F, Fig. 3. \Ve have also found it economical and satisfactory to employ a mohair-plush fabric, which is secured in any suitable manner upon the body of the doifer, although any other brush-like fabric or material may be employed, if desired. The principal object in this regard is to secure the action of the fibers against the clothing of the drum B, as the doffer-roll is actuated in an opposite direction to that of the adjacent surface of the drum, so that said fibers pick up the fringed or other character of leadingedge of the article upon the drum and carry the same over and away from the drum toward the stationary dotfer-blade G, which by reason of the brush-like surface of the rotary doifer may project quite materially into the fibrous periphery of the rotary doffer, and thus insure the separation therefrom of the leading edge of the article, after which the blade performs its well-known function of guiding the goods to and between the elements 0 C of the subsequent ironing mechanism. As clearly shown in the drawings, the plate G is also supported by the brackets E, and it may be stiffened lengthwise by a bar G, so that its edge is held against displacement and vibration.

In order to insure a greater orless pressure or closeness of contact of the rotary doffer against the drum, we may provide an adjustably-mounted weight H upon an arm H, p'rojecting from one or both of the brackets E, as clearly shown in Fig. 1. It is essential that the surface of the rotary doffer have a direction of movement contrary to that of the surface of the drum at the line of contact, and it is advantageous to have its rotation of greater surface speed than that of the drum. There are a multiplicity of ways of securing the rotation of the doffer. o have illustrated one of many in which acenter shaftI is mounted upon the sills of the frame and provided at each end with pulleys I 1 the former being connected by a belt I with the pulley I on the power-shaft D. The pulley I is connected by a belt I with a pulley F mounted on the journal of the doifer F. The belt I is crossed in order to give the proper direction of rotation to the doffer.

It is evident that our compound dolfer may be advantageously employed in other than ironing-machines, and such use is intended, if desired.

What we claim is- 1. The combination, with two adjacent ironing mechanisms, of an interposed compound rotary and fixed doffer mechanism, substantially as specified.

2. The combination, with adjacent ironin mechanisms, of an interposed compound do fer mechanism involving as one of its elements a fixed doffer, substantially as specified.

3. The combination,with two ironing mechanisms, of an interposed rotary doifer and a fixed doffer arranged in the order specified, substantially as specified.

4. The combination, with a clothed drum, of a rotary doffer and a fixed dofier, the former being mounted yieldingly against the drum and the latter fixedly against the former, substantially as specified.

5. The combination, with a clothed drum, of a rotary dofier and means for yieldingly pressing the same against the drum, and an edged doffer mounted fixedly in relation to the rotary doifer and movable therewith toward and away from the drum, substantially as specified.

6. The combination of a rotary doffer, a fixed dolfer, and brackets for supporting the same, and weighted arms secured to the bracket, substantially as specified.

7. The combination, with a rotary and a fixed doffer and with brackets for supporting the same, of means for pivotallysupporting the brackets and for yieldingly moving the brackets on their pivots, substantially as specified.

8. The combination, with a clothed drum and with adjacent supplementary ironing mechanism, of a rotary and a fixed doifer pivotally mounted between the drum and the said ironing mechanism and means for rotating the rotary doifer in a direction opposite to that of the drum, substantially asspccified.

9. The combination, with a clothed drum, of a rotary doifer having a brush-like periphcry, a fixed dolfer arranged to project into the periphery of the rotary doffer, and means gorirotating the latter, substantially as speci- 10. The combination, with a rotary doffer having its periphery covered with mohair plush, of a fixed doffer-blade arranged to project slightly into the periphery of the rotary doffer and means for yieldingly moving the In testimony whereof we affixour signatures blade and rotary doffer simultaneously toin presence of two witnesses.

ward the drum, substantially as specified. THOMAS S. WILES.

11. The combination, with brackets, as E, MENZO E. WENDELL. 5 of a fixed blade, as G, a stiffening-bar, as G, Witnesses:

and a rotary doifer, as F, substantially as M. VAN ALsTYNE,

specified. H. S. WILOOX. 

